Access all tetrahedrons incident on a vertex

Question

I would like to know that how can we access all tetrahedrons incident on a vertex in a CGAL 3D triangulation?

I have seen cell() function for vertex, but it seems to allow access to one(arbitrarily selected?) tetrahedron only.

score 4 · Answer 1 · edited Apr 16 '15 at 06:08

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The answer you are looking for should be TDS::incident_cells.

edited Apr 16 '15 at 06:08

Pranav

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answered Apr 30 '14 at 12:12

olivier

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Although the **incident_cells** function exactly satisfies my requirement, I am facing some troubles using it. Can you give an example code for explaining how to use this function. Further, I want to know Why it returns **outputiterator** both as return value and in argument under the name **cells**? – Pranav May 02 '14 at 06:06
Specifically, if I want to access all cells returned by **incident_cells** function say in a **while loop**, what _termination criteria_ should by used(as it seems I only have access to iterator but not its corresponding container, so how to get access to _begin()_ and _end()_). – Pranav May 02 '14 at 06:17

score 1 · Accepted Answer · edited May 23 '17 at 11:50

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I had trouble using the incident_cells() function as I was not sure how to use the OutputIterators. This CGAL forum discussion exactly answers my question(with a code example).

edited May 23 '17 at 11:50

Community

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answered May 12 '14 at 10:07

Pranav

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Access all tetrahedrons incident on a vertex

2 Answers2